Apr
07.
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An upper air trough of low pressure (“U” shape) is moving South through Oregon. It has brought in even more rain and cool temperatures today with falling mountain snow levels. There is a chance of thunderstorms, but more often we just end up with small hail without the thunderstorms. After a break Friday and part of Saturday another frontal system should be moving in Saturday night and Sunday.
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Advisories: A FROST ADVISORY IS IN EFFECT FROM 3 AM UNTIL 9 AM FRIDAY FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST, AND CENTRAL DOUGLAS COUNTY. A FREEZE WARNING IS IN EFFECT FROM 3 AM UNTIL 9 AM FRIDAY FOR EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON COUNTY.
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Here are your detailed forecasts. **
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Partly cloudy with a (30%) chance of showers this evening, patchy fog late tonight and Friday AM, partly cloudy Friday afternoon and Friday night, mostly cloudy with a (30%) chance of rain Saturday and Saturday evening, rain likely (60%) late Saturday night, rain likely (60%) Sunday and Sunday night lows 30-40 highs 56-60. Mostly cloudy with a (40%) chance of showers Monday through Tuesday, then a (40%) chance of rain Wednesday through Thursday highs 53-56 lows 34-42. (seasonal averages high 59 low 38)
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Forecast for the Umpqua Basin including, Roseburg: Mostly cloudy with a (30%) chance of rain and snow showers this evening with areas of frost late at night (evening snow level 1,500 ft.) and Friday AM, partly cloudy Friday afternoon and night, mostly cloudy with areas of frost Saturday AM, mostly cloudy with a (30%) chance of rain Saturday night, rain likely (60%) Sunday and Sunday night lows 33-43 highs 55-59. Mostly cloudy with rain and snow likely (60%) Monday, a good (50%) chance of rain and snow showers Monday night, then a (30%) chance of showers Tuesday and Tuesday night, rain likely (60%) Wednesday and Wednesday night, then mostly cloudy with showers likely (60%) Thursday highs 52-60 cooling to near 52 by Thursday lows 32-44. (seasonal averages high 63 low 40)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with a slight (20%) chance of evening showers, mostly cloudy tonight with areas of frost late tonight and Friday AM, partly cloudy Friday afternoon and Friday evening, mostly cloudy Friday night with patchy frost late at night and early Saturday AM, becoming cloudy Saturday night with a good (50%) chance of rain Saturday night, mostly cloudy with rain and breezy Sunday and Sunday night lows 35-45 highs 50-55. Mostly cloudy with rain likely (60%) Monday, then a good (50%) chance of showers Monday night through Tuesday night, cloudy with rain rain likely (60%) Wednesday and Wednesday night, then mostly cloudy with rain likely (60%) Thursday highs from 52-55 and back near 50 Thursday lows 37-45. (seasonal averages high 57 low 42).
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Forecast for the Cascades of Lane County: Partly cloudy with a (40%) chance of snow showers this evening, a slight (20%) chance of snow showers late tonight, partly cloudy Friday and Friday night, mostly cloudy with a good (50%) chance of rain and snow Saturday and Saturday night, rain and snow Sunday and Sunday night snow level at the surface tonight, free air freezing level 3,500 ft. Friday, and snow level 4,500 ft. Friday night and Saturday, 5,000 ft. Saturday night and Sunday, then falling to 3,000 ft, Sunday night lows 15-29 highs 40-46. Mostly cloudy with rain and snow showers likely (60%) Monday, a good (50%) chance of snow showers Monday night, a good (50%) chance of rain and snow showers Tuesday, mostly cloudy with a good (50%) chance of snow Tuesday night, a good (50%) chance of snow and rain Wednesday, then snow and rain likely (60%) Wednesday night and Thursday snow level 3,000 ft. Monday and Monday night, 3,500 ft. Tuesday, then 2,500 ft. Tuesday night, 3,000 ft. Wednesday, 3,500 ft Wednesday night, then 4,000 ft Thursday highs 30-42 lows 20-29.
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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.